HSC110SS WEATHERPROOF SUNSET SWITCH LIGHT SENSOR / TIMER / ECO CABAC HSC110SSWeatherproof Sunset Switch The Weatherproof Sunset Switch is used to switch outdoors lights (or indoors light when applicable) off when they are not required in daylight. In its most basic form, the unit senses outdoors light level and switches a relay on and off, thus turning the lights wired to it on or off. Traditionally the lights wouldturn on during sunset, therefore it is commonly known as a Sunset Switch. Unlike other sunset switches on the